Boiler-flue cleaner.



W. B. GLOWERS.

BOILER. FLUE CLEANER.

APPLICATION FILED JUNE 6, 1909.

935,141 Patented Sept. 28, 1909.

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WILLIAM B. cnownns, or LEI-IIGH, OKLAHOMA.

BOILER-ELITE CLEANER.

Specification of Letters Patent.

Patented Sept. 28, 1909.

Application fi1ed June 5, 1909. Serial No. 500,421.

To all whom it may concern:

Be it known that I, VILLIAM B. Cnownns, a citizen of the United States,residing at Lehigh, in the county of Coal and State of Oklahoma, haveinvented a new and useful Boiler-Flue Cleaner, of which the following isa specification.

This invention relates to boiler flue cleaners of that type designed todirect jets of steam into the fiues for the purpose of drivingaccumulations of soot, etc. therefrom. Devices of this character such asheretofore designed have been found objectionable because the nozzlesemployed for directing steam into the fines have been located in thepath of the hot products of combustion passing from the fire box to thefines and have therefore soon become burned to such an extent as torender them unfit for use.

The object of the present invention is to provide nozzles which aremovably supported and project into the path of the products ofcombustion only at such times when jets of steam are being directed intothe fines.

A further object is to provide a series or battery of nozzles which canbe readily withdrawn from the path of the combustion products and wherethey can be supported without danger of injury from the heat.

Vith these and other objects in view the invention consists in certainnovel details of construction and combinations of parts hereinafter morefully described and pointed out in the claim.

In the accompanying drawings the preferred form of the invention hasbeen shown.

In said drawings :Figure 1 is a longitudinal section through one endportion of a boiler and furnace with the present improvement appliedthereto. Fig. 2 is an enlarged longitudinal section through one of thenozzles and its supply tube and through the adjoining parts of thefurnace walls. Fig. 3 is a transverse section through a portion of thebattery of nozzles.

Referring to the figures by characters of reference A designates therear portion of the furnace structure and B designates a steam boilerhaving fines 1) arranged longitudinally therein as ordinarily.Interposed between the back wall a and the adjoining end of the boilerB, is a partition a, there being a compartment C thus formed between thewalls a and a.

Supported within the compartment C is a distributing head 1 from whichextends a number of guide and feeding tubes 2, each tube being disposedin alinement with one of the fines b of the boiler. These tubes 2preferably terminate close to the wall a and adjacent openings 3 whichare formed within the partition a and also in alinement with the flues1). Each tube 2 has a nozzle 4 slidably mounted upon it, all of thenozzles being connected to a plate 5 which serves to hold the nozzlesproperly assembled at one end. A link 6 extends from the plate 5 andthrough an opening 7 within the wall a and this link is designed to beshifted longitudinally in any preferred manner, as, for example, bymeans of a lever 8.

The head 1 has a supply pipe 9 opening thereinto and a pipe 10 isdesigned to direct exhausting steam from an engine and into the pipe 9while another pipe 11 is designed to direct live steam from the boilerand into the pipe 9, there being a valve 12 for cutting off the supplyof live steam when so desired.

It is to be understood that when the nozzles 4 are in their normalpositions, their free ends are flush with the face of the wall orpartition 64 which is nearest the boiler b and the plate 5 rests closeto the head 1. While the parts are thus located exhaust steam from theengine being driven will pass from pipe 10 to pipe 9 and thence to thehead 1 from which it will be discharged through the nozzles and into thespace between the wall a and the boiler B. Should it be desired to cleanthe fines b by blowing accumulations therefrom, the lever 1 is actuatedso as to force the plate 5 longitudinally out the tubes 2. The nozzles 4will thus be pushed beyond the wall a and close to the open ends of theflues as indicated in Fig. 1. The exhaust steam will thus be directed atonce from the nozzles and into the fines. By opening the valve 12 livesteam will then be free to rush into the head 1 and thence through thenozzles 4 and into the fines and will, obviously, thoroughly clean thefines by blowing all accumulations from them. As soon as the lines havebeen cleaned the nozzles 4 can be withdrawn from the smoke box locatedbetween the boiler B and the wall a, and they will thus be protected bysaid wall a against the action of the hot products of combustion passingthrough the smoke box and into the flues. It will be seen therefore thatthe nozzles can be used for a long time without being affected by theheat to such an extent as to be rendered useless.

' It has been found that by utilizing apparatus such as herein describedit becomes unnecessary to employ a smoke-stack for the purpose ofobtaining a draft, because the steam discharged in the fiues will causethe proper circulation of the gases through and from the boiler.

It is of course to be understood that various changes may be made in theconstruction and arrangement of the parts without departing from thespirit or sacrificing the advantages of the invention.

hat is claimed is The combination with a furnace and a flue boiler,there being a smoke box extending back of the boiler and a compartmentin rear of the smoke box and out of communication therewith, of adistributing head fixedly mounted within said compartment,

valved means for directing steam into the head, parallel guide tubesextending from the head and toward the smoke'box, there being aperturesin one wallof the smoke box and registering with the tubes, a meme berslidably mounted on the guide tubes, parallel nozzles fixedly connectedto said member and slidably mounted on the tubes and within theopenings, means for shifting said member to simultaneously move thenozzles through the apertures toward the tubes of the boiler, or intothe compartment and close to the head, and packing interposed betweeneach nozzle and its guide tube.

In testimony that I claim the foregoing as my own, I have hereto aflixedmy signature in the presence of two witnesses.

NVILLIAM B. CLOWVERS.

l/Vitnesses V R. R. CUNNINGHAM, BooNE WILLIAMS.

